Sliver and analogous can



. June 5, 1928. I 1,672,581

J. A. SUTCLIFFE ET AL SLIVER AND ANALOGOUS CAN ;F i1ed May 27, 1926 2 Sheets-Sheet 1 Invaders:-

,By Heir III/01kg];-

June 5, 1928. 1,672,581

J. A. SUTCLIFFE ET AL SLIVER AND ANALOGOUS CAN Filed May 27, 1926 2 Sheets-Sheet 2 Layer: hrs:-

Patented June 5, 1928 U N D STATE S 1,672,581 PATENT OFFICE.

lmn'nsannsaron sU'rcLrrrE AND JOHN noLKER ANDERTON SUTCLYIFFE, or CRUMP- SALL, MANCHESTER, ENGLAND; SAID JAMES ANDERTON su'romrrn ASSIGNOB 'ro SAID Joni: HOLKER annnn'ron SUTCLIIEFE. I 1

SLIVER AND ANALOGOUS CAN.

Application filed Ma er, 1926, Serial Ito/111,978, and in Great, Britain July 28, 1925.

This invention relates to cans of vulcanized fibre papier niach and analogous fibrous material employed for various purposes, for instance to receive sliver in preparatory processes of textile spinning- Such cans are provided with a metal ring around the rim there of and these rings are generally positively attached by means of rivets or the like to thematei ial of the can, or the metal of the ring is pressed into the fibre by a swaging process. A ring has been proposed having a wire inserted in it such ringbeing corrugated circumferentially and being pressed on to a can by bending or pressing rolls, and in another proposed form an inner ring distended the material of the can and an outer ring was passed over the distended portion.

N ow our present invention relates to rings for use on the rims of cans of the type referred to and has for object the provision of a ring which can be pressed onto such rim by ordinary means say in a cardroom by the ordinary mill mechanic and which will be held securely against all handling which the,

can may sustain in use, without employing positive fastening means and without distor tion and consequent weakening of the substance of the can itself. According to the said invention we form the ring of strong and resilient metal of substantially U section, the outer wall or fold of the said ring which in this form becomes a collar-being formed with frictional surfaces which grip the substance of the can by the resiliency of the said outer wall orvfold.

A ring so formed, after it has been pressed on to the sliver can, will not be moved or displaced by any handling to which the can may be subjected. I

A very convenient and practical method of forming a ring according to the invention will now be describedwith reference to the accompanying drawings, wherein;

Figures 1 and 2 show the ring in two forms which it assumes in the course of manufacture;

Figure 3 is a cross section showing the ring pressed upon a sliver can and taken'on line 8-3 of Figure 4; which latter figure is a section on line &-4: of Figure 3;

Figure 5 is a detail in section and;

Figure 6 is an end elevation of the completed ring,

A sheet metal plate, cut to the correct size according to the diameter of the sliver can :on which the ring is to fit, is first taken and drawn into a dishcdform by known means.

The bottom of the dished member so formed 1 is then pressed inwardly, the article assummg the form shown in Figure l, where 7 IS the bottom of the dish pressed inwardly, and

8 and 9the outer and inner folds respec-.

tively of the ring. The bottom? is then cut outs-and the edge ofthe outer fold. 8 is beaded with a complete bead as shown at 10 Figure 2, the edge of the inner fold being turnedover'as shown at 11 in that figure. This inner foldis, in the complete ring, within the can, and the turning over of the edge obviates any danger of sliver catching thereon.

The ring thus prepared is placed on a suitably shaped holder and any convenient means may be employed for forming in the said ring concavities or depressions shown at 12 in the drawings leaving projections 13 radial to the ring. For instance, a circular frame surrounding and concentric with the holder may be provided, with screw or other clamps which may be operated radially to the ring to form the depressions 12'by inward radial pressure on the ring. The faces of the clamps are as will be understood suitably shaped. By this or any analogous means knownin the t'insmiths art there is formed on the outer fold 8 of the ring a pluralityofchighly resilient points of frictional contact around the inner face of the said outer fold 8. See Figures 3,4, and 6. The external diameter of the holder will be less than that of the ring to allow for the depressions, this external diameter of the holder being as will be understood a shade less than that of the can to which the complete ring is to be applied.

The ring is shown in Figures 3 and 4 as being in position ona sliver can 14:. It will be seen on reference to the detail Figure 5 that at the commencement of the pressure on the ring to fit it on the can rim the beaded edge 10 must be moved out of the way by the said rim, frictional pressure being applied to the outer face of the can by the bead. The latter thus serves as a frictional gripping surface upon the ring. The pressure on the ring continuing, the edge of the can comes against the convex frictional faces 12 andthe turned over edge 11 of the inner fol-d 9 of the ring, and then reaches the point shown in Figure 3 where I the ring rests upon the rim of the The I these points-such bending not amen-lit to distortion-will when it takes place assist in a measure the frictional grip of the ring upon the can.

Obviously we are not con-fined to the exact method of manufacture described above and illustrated in the drawings. For instance, a series of peripheral rows of concave depressions may be formed in the outer fold 8 to give the frictional holding points, so long as the metal is resilient.

The head 10 inaddition to assisting in frictionally securing the ring upon the can, serves as a convenient means for allowing the can. to be lifted.

We claim I v '1.v For use on the upper edge of a can formed of fibre a ring of resilient metal and the said upper edge, the outer fold of the collar having formed on the inner face thereof projections to exert a frictional grip only between. the enter surface of. -the fibre and the said outer told when the. collar slid into position, without distortion of the said outer surface.

2. For use on the upper edge of a can formed of fibre, ring of resilient metal and of U section adapted to fit tightly over the sa-id upper edge, the outer fold of the ring having formed on the inner face: thereof projections to exert frictional grip only between the outer surface of the fibre can and the said outer fold when the ring is slid into position, without distortion of said outer surface, and a bead formed on the edge of the said outer fold to exert an added frictional grip upon the said outer surface of the can. 7

In testimony whereof we have hereunto set our hands.

JAMES ANDER 'FON SUTCI-LIFFE. .I-OHN HDLKER ANDERTGN SUTCLI FFE 

